Affiliation:
1. Beijing Institute of Technology
2. High School Affiliated to Beijing Institute of Technology
Abstract
In order to improve the dynamic stability of precision micro slitting turn-milling machine tools, reduce or avoid the vibration problem during the cutting process, optimize the machine structure and processing parameters, the modal analysis of precision micro slitting turn-milling machine tool based on hammer experimental method was researched. In this paper, by analyzing the mechanism of precision micro slitting turn-milling machine tools, the multi degree-of-freedom mathematical vibration model of precision slitting turn-milling machine tools is constructed. The precision micro turn-milling machine tool is analyzed based on the hammer experiment analysis. The modal analysis obtained the first five natural frequencies and resonance speeds of the precision micro slitting turn-milling machine tool,including ST26, NN-25UB8K2 and NN-20UB87. The research results show that hammer experimental method can evaluate the vibration modal analysis of precision micro slitting turn-milling machine tools to some extent. The experimental modal analysis results guide and optimize the structural design and processing technology of precision micro slitting turn-milling machine tools.
Publisher
Trans Tech Publications, Ltd.
Subject
Condensed Matter Physics,General Materials Science,Atomic and Molecular Physics, and Optics
Reference8 articles.
1. Mejri S, Gagnol V, Le T P, et al. Dynamic characterization of machining robot and stability analysis[J]. International Journal of Advanced Manufacturing Technology, 2016, 82(1-4): 351-359.
2. Zhang Zhijing, Jin Xin. Precision Micro turn-milling Compound Machining Technology [M]. Beijing: National Defense Industry Press, (2014).
3. Wang Zelin. Analysis and Study on Feature Parameter Identification of Machine Tool Sliding Joint[D]. Master thesis of Beijing University of Technology, (2011).
4. Sun Yewang, et al. Effects of transient slamming and harmonic swings on the marine compound NC machine tool[J]. Ocean Engineering, 2015, 108:606-619.
5. Ma Yue, et al. Dynamic Performance Analysis of Precision Machining Center Based on Test Mode[J]. Combined Machine Tool & Automatic Processing Technology, 2016(10):12-16.